89619521040 has 800 divisors, whose sum is σ = 367263350784. Its totient is φ = 19830666240.

The previous prime is 89619521023. The next prime is 89619521071. The reversal of 89619521040 is 4012591698.

89619521040 is a `hidden beast` number, since 8 + 9 + 619 + 5 + 21 + 0 + 4 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 270753675 + ... + 270754005.

Almost surely, 2^89619521040 is an apocalyptic number.

89619521040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89619521040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183631675392).

89619521040 is an abundant number, since it is smaller than the sum of its proper divisors (277643829744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89619521040 is a wasteful number, since it uses less digits than its factorization.

89619521040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 89619521040 in words is "eighty-nine billion, six hundred nineteen million, five hundred twenty-one thousand, forty".